Dynamic projection device, method and projector

Abstract

Embodiments of the present disclosure relate to the technical field of digital projection display, and disclose a dynamic projection device, a dynamic projection method, and a projector. The device includes: a projection unit configured to output a projection picture according to a projection image; a reflection unit configured to reflect the projection picture to a target projection position; an angle calculation unit connected with the reflection unit and configured to calculate a rotation angle of the reflection unit; and an image correction unit connected with the angle calculation unit and the projection unit, respectively, and configured to correct the projection image according to the rotation angle. The present disclosure adjusts the projection direction by controlling the reflection unit with simple structure and light weight, realizing convenient direction control and high-quality projection display, and covering a wide area of the projection environment.

The invention claimed is: 
     
       1. A dynamic projection device, comprising:
 a projection unit configured to output a projection picture by magnifying a projection image; 
 a reflection unit configured to reflect the projection picture to a target projection position; 
 an angle calculation unit connected with the reflection unit and configured to calculate a rotation angle of the reflection unit; 
 an image correction unit connected with the angle calculation unit and the projection unit, respectively, and configured to correct the projection image according to the rotation angle; and 
 a control unit connected between the angle calculation unit and the reflection unit and configured to control the reflection unit to rotate according to the rotation angle. 
 
     
     
       2. The dynamic projection device of  claim 1 , further comprising:
 a communication unit connected with the angle calculation unit and configured to receive user instruction information and input the user instruction information to the angle calculation unit. 
 
     
     
       3. The dynamic projection device of  claim 2 , wherein:
 the user instruction information comprises target projection position information; 
 the instruction is a user voice instruction, and/or a user gesture instruction, and/or a remote controller instruction. 
 
     
     
       4. The dynamic projection device of  claim 1 , further comprising:
 a spatial modeling unit connected with the angle calculation unit and configured to acquire spatial three-dimensional information of a projection environment, establish a spatial three-dimensional model according to the spatial three-dimensional information, and input the spatial three-dimensional model to the angle calculation unit. 
 
     
     
       5. A dynamic projection method, comprising:
 calculating a rotation angle of a reflection unit; 
 correcting a projected image according to the rotation angle; 
 outputting a projection picture by magnifying the projection image using a projection lens; and 
 reflecting the projection picture to a target projection position by the reflection unit; 
 wherein, calculating a rotation angle of a reflection unit specifically comprises: 
 receiving user instruction information; 
 calculating a deflection angle of the projection picture according to the user instruction information; and 
 calculating the rotation angle of the reflection unit according to the deflection angle of the projection picture. 
 
     
     
       6. The dynamic projection method of  claim 5 , further comprising, prior to the reflecting the projection picture to a target projection position by the reflection unit:
 rotating the reflection unit according to the rotation angle. 
 
     
     
       7. The dynamic projection method of  claim 5 , wherein,
 the user instruction information comprises target projection position information; 
 the instruction is a user voice instruction, and/or a user gesture instruction, and/or a remote controller instruction. 
 
     
     
       8. The dynamic projection method of  claim 5 , further comprising, prior to the calculating a deflection angle of the projection picture according to the user instruction information:
 acquiring spatial three-dimensional information of a projection environment; 
 establishing a spatial three-dimensional model according to the spatial three-dimensional information; 
 calculating a coverage area of a projection area of a projection device in the projection environment according to the spatial three-dimensional model and a structural limitation of the projection device; and 
 calculating the deflection angle of the projection picture according to the coverage area of the projection area and the user instruction information. 
 
     
     
       9. A projector comprising: a projection lens, and a micro-controller configured to control the projection lens to project a projection picture, the micro-controller being capable of performing a dynamic projection method comprising:
 calculating a rotation angle of a reflection unit; 
 correcting a projected image according to the rotation angle; 
 outputting the projection picture by magnifying the projection image using the projection lens; and 
 reflecting the projection picture to a target projection position by the reflection unit; 
 wherein, calculating a rotation angle of a reflection unit specifically comprises: 
 receiving user instruction information; 
 calculating a deflection angle of the projection picture according to the user instruction information; and 
 calculating the rotation angle of the reflection unit according to the deflection angle of the projection picture. 
 
     
     
       10. The projector of  claim 9 , wherein the dynamic projection method further comprises, prior to the reflecting the projection picture to a target projection position by the reflection unit:
 rotating the reflection unit according to the rotation angle. 
 
     
     
       11. The projector of  claim 9 , wherein,
 the user instruction information comprises target projection position information; 
 the instruction is a user voice instruction, and/or a user gesture instruction, and/or a remote controller instruction. 
 
     
     
       12. The projector of  claim 9 , wherein the dynamic projection method further comprises, prior to the calculating a deflection angle of the projection picture according to the user instruction information:
 acquiring spatial three-dimensional information of a projection environment; 
 establishing a spatial three-dimensional model according to the spatial three-dimensional information; 
 calculating a coverage area of a projection area of a projection device in the projection environment according to the spatial three-dimensional model and a structural limitation of the projection device; and 
 calculating the deflection angle of the projection picture according to the coverage area of the projection area and the user instruction information.